64118896741501 has 4 divisors (see below), whose sum is σ = 73278739133152. Its totient is φ = 54959054349852.

The previous prime is 64118896741499. The next prime is 64118896741553. The reversal of 64118896741501 is 10514769881146.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64118896741501 - 2¹ = 64118896741499 is a prime.

It is a super-2 number, since 2×64118896741501² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64118896741501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64118896741591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4579921195815 + ... + 4579921195828.

It is an arithmetic number, because the mean of its divisors is an integer number (18319684783288).

Almost surely, 2^{64118896741501} is an apocalyptic number.

It is an amenable number.

64118896741501 is a deficient number, since it is larger than the sum of its proper divisors (9159842391651).

64118896741501 is an equidigital number, since it uses as much as digits as its factorization.

64118896741501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9159842391650.

The product of its (nonzero) digits is 11612160, while the sum is 61.

The spelling of 64118896741501 in words is "sixty-four trillion, one hundred eighteen billion, eight hundred ninety-six million, seven hundred forty-one thousand, five hundred one".